Thanks for the bug report. I'm quite sure Upstream considered this, however, gnome-terminal couldn't have Ctrl-C for copying, so they tried to do at least all of the cominations consistent in the app itself (ctrl-shift-t for tabs, ctrl-shift-c for copying, ...) - The better place to discuss this would probably be the upstream Bugzilla.
Thanks for the bug report. I'm quite sure Upstream considered this, however, gnome-terminal couldn't have Ctrl-C for copying, so they tried to do at least all of the cominations consistent in the app itself (ctrl-shift-t for tabs, ctrl-shift-c for copying, ...) - The better place to discuss this would probably be the upstream Bugzilla.